Active clinical trials for "Respiratory Tract Infections"

The purpose of this study is to evaluate the Safety and Efficacy of Nirsevimab, in Healthy Preterm and Term Infants in China

Bronchiolitis is a common viral infection of the small airways of infants and some affected infants will require hospital admission. Severe bronchiolitis is a marker for greatly increased risk of developing both preschool wheeze and subsequent school age asthma. Since epidemiological studies suggest that exposure to microbial products protects against preschool wheeze, lysates of bacteria may prevent the development of wheeze after bronchiolitis, with long-term beneficial consequences. BLIPA is a phase 2b, randomised, double blind, placebo-controlled study, investigating the efficacy superiority of bacterial lysate (Broncho Vaxom) capsules over placebo, in reducing wheeze in infants after severe bronchiolitis. The primary end point of the study is parent-reported, healthcare-professional confirmed wheeze at 19-24 months. The study aims to test bacterial lysate capsules (3.5mg over 24 months) for safety, efficacy, and to advance mechanistic understanding of its action.

In this trial the researchers plan to recruit 25,000 volunteers to be randomly allocated either wearing sunglasses or ordinary glasses in public spaces where they are close to other people, or not wear glasses in such circumstances. For each participant the trial period is 2 weeks, after which they will be asked to complete a brief questionnaire which includes questions about results of COVID-19 tests during the trial period.

This study evaluates the efficacy of a single strain probiotic on the incidence, duration and severity of upper respiratory tract infections in healthy, school-age children.

The purpose of this study is to detect the efficacy of intranasal dexmedetomidine as a premedication to general anesthesia in pediatric patients with respiratory comorbidities undergoing adenotonsillectomy.

Respiratory diseases are one of the leading causes of morbidity and mortality among young children, and respiratory syncytial virus (RSV) is the most common pathogen causing these respiratory diseases in this age group. RSV can present in the form of a variety of clinical syndromes, including upper respiratory tract infections, bronchiolitis, pneumonia, exacerbations of asthma and viral-induced wheeze. RSV is highly seasonal and occurs mostly during winter seasons in temperate climates. Sixty to seventy percent of all children experience an RSV infection before the age of one, and nearly all do so before the age of two.( 'Burden of disease' is a general term without a universally accepted definition and refers to the human and economic costs that result from poor health. RSV 'burden of disease' studies in young children (aged 0-4 years), have mostly been focused on the morbidity and mortality rates of RSV infections. The socio-economic burden of RSV infections in young children has been studied, however, a meta-analysis showed that of the 365,828 RSV disease episodes included in cost-analysis studies, only 27,286 (7.4%) focused on outpatient and emergency cases. To our knowledge, only two outpatient studies have prospectively investigated the clinical and socio-economic burden of laboratory confirmed RSV infections in young children; and both studies collected data in the early 2000s. More recently, one study has investigated the health care use, duration of illness and complications associated with RSV in a cohort of newborn infants. There is therefore a lack of knowledge on the clinical and socio-economic disease burden of RSV infections in young children in primary care. Current treatment options for RSV infections are limited to supportive care. The only available antiviral monoclonal antibody (mAb) 'Palivizumab' is considered cost-effective for certain high-risk group infants and requires monthly injections during winter. New candidate RSV vaccines and mAbs (with longer half-life times) are in late-stage clinical trials. Therefore, accurate estimates of the burden of RSV infections, including in primary care, are crucial to better assess the overall impact RSV infections may have on the society.

The goal of this mechanism of disease study is to investigate the effect of flurbiprofen, a non-steroidal anti-inflammatory drug (NSAID), on the cough hypersensitivity associated with upper respiratory tract infections (URTI). The main questions it aims to answer are: Q1: Does a single treatment with an approved therapeutic dose of flurbiprofen, an NSAID that prevents the production of prostaglandins, acutely reduce objective measures of cough hypersensitivity in participants with URTI? Q2: Is the effect of flurbiprofen on cough hypersensitivity in URTI related to participant subjective ratings of acute cough severity? Q3: Is the effect of flurbiprofen on cough hypersensitivity in URTI related to the levels of prostaglandins or other inflammatory markers measurable in upper airway secretions? Participants will be asked to undergo cough challenge testing, complete quality of life questionnaires, and have their nasal fluid, saliva and pharyngeal secretions sampled before and after a single treatment with flurbiprofen in the form of a lozenge or spray. Participants in the comparator arms of the study will instead receive a placebo lozenge or low dose flurbiprofen spray.

This trial is taking place in Los Angeles, CA at clinics within the Los Angeles Department of Health clinics. The study design is a comparative effectiveness trial design. Patients will be randomized into 1) receiving enhanced texting with a callback by a trained call-center staff member to schedule a vaccine visit if the patient presses "1" in response to the text, 2) receiving enhanced bidirectional texting with a texting response from a trained call-center staff member who will help the patient schedule a vaccine visit through a series of back-and-forth texts, or 3) standard text reminders (control group). Patients in all arms will receive reminders if they are due for influenza vaccine. Despite the Advisory Committee on Immunization Practices (ACIP) recommendation in 2010 that all people above 6 months of age should receive an annual flu vaccine, vaccination rates remain low: at 6m-4.9 yrs. (70%), 5-17.9 yrs. (56%), 18-64.9 yrs. (38%), and >65 yrs. (63%). The investigators will assess the effectiveness of enhanced text R/R messages as compared to the standard of care control (standard text reminders).

The aim of this study is to test saliva samples obtained from healthy human participants for anti-viral activity after they have consumed S. salivarius probiotic in a powder format.

This study is a randomized, double-blind, Placebo Controlled study to evaluate the efficacy of 180 days administration of EQ-778 on upper respiratory tract health status in healthy adults